Anomaly exoplanet 72 EP

HATS-27 b

RA 193.5525° · Dec -46.5877° · exoplanet

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Score breakdown

· 8 badges

72 pts · Anomaly

Anomaly 95 pts → Mythic

Lava world +14
Puffy low-density world +12
Hot Jupiter +10
Distant (>1000 ly) +10
Eccentric orbit +9
Blasted by starlight +8
Confirmed exoplanet +5
Gas giant +4

Total score 72

23 more points to reach Mythic.

Badges

Confirmed exoplanet · +5
Gas giant · +4
Hot Jupiter · +10
Lava world · +14
Eccentric orbit · +9
Puffy low-density world · +12
Blasted by starlight · +8
Distant (>1000 ly) · +10

Trivia

What makes it special

Lava world. Its surface is likely an ocean of molten rock.
Cotton-candy planet. So low-density it would float on water.

Could we get there?

Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

Aboard Voyager 1. ≈ 46.8 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 4.2 million years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 26.6 thousand years in a starship at a tenth of light speed.
Distance. 2665 light-years from Earth.

Look-back time

Look-back time. Its light left before the last ice age ended.

Saying hello

Say hello. A radio message and its reply would take 5329 years round-trip.

Standing on it

A year here. A full year lasts just 4.6 Earth days.

By the numbers

Size. About 16.8× the width of Earth.
Volume. About 4753 Earths could fit inside it.
Mass. Roughly 168× Earth's mass — about 0.5 Jupiters.
Your weight. You'd weigh about 0.6× your Earth weight standing here.
Density. Less dense than water — drop it in a big enough ocean and it would float.
Temperature. Around 1386°C — hotter than a self-cleaning oven.

How we found it

Discovery. Found by HATSouth using the transit method.

Properties

density gcc: 0.18
discovery facility: HATSouth
discovery method: Transit
dist ly: 2664.6554
eccentricity: 0.581
eq temp k: 1659
insolation: 1342.5733
mass earth: 168.4499
name: HATS-27 b
orbital period days: 4.637
radius earth: 16.8135
sys num planets: 1

About HATS-27 b

HATS-27 b is an anomaly exoplanet. It lies about 2,664.7 light-years from Earth, has an equilibrium temperature near 1,659 K, spans roughly 16.81 Earth radii and weighs about 168.45 Earth masses.

Its surface is likely an ocean of molten rock.

How to see it

Like any astronomical target, HATS-27 b is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.

Why HATS-27 b is an anomaly exoplanet

HATS-27 b scores 72 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 23 points would lift it into a rarer tier.

That score comes from 8 science badges — Confirmed exoplanet, Gas giant, Hot Jupiter, Lava world, Eccentric orbit, Puffy low-density world, Blasted by starlight and Distant (>1000 ly) — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.